Same goal — outdoor living space — with a 3–5× price gap between the two answers. Here’s when each one is right, with real 2026 numbers.
The cost gap, quantified
A concrete patio runs $7–$12 per square foot installed (stamped: $13–$22), while a wood deck runs $25–$40 and composite $40–$60. For a 16×12 space, that’s roughly $1,400–$2,300 for a broom-finished patio versus $5,500–$12,500 for a deck. Price your exact size with the patio calculator and the deck calculator — seeing both numbers for your yard usually settles half the debate.
The decision is really about your yard
Flat yard, door at ground level → patio. It’s a third of the price, lasts 30+ years, and never needs staining. This is why patios dominate in flat-lot suburbs.
Elevated door, sloped or uneven yard → deck. A deck floats over grade problems that would require expensive retaining walls and fill to fix for a patio. If your back door sits 3+ feet above the yard, the deck isn’t a luxury — it’s the engineering answer.
Wet or poorly draining yard → deck, since patios in soggy soil heave and crack.
Ongoing costs people forget
The patio’s maintenance is near zero — optional sealing every few years. A wood deck is a subscription: staining every 2–3 years (our stain calculator prices each cycle) plus board repairs, which is exactly why composite exists — run the composite vs wood comparison if you’re deck-bound but maintenance-averse.
Resale reality
Both appraise well when in good condition. Patios recoup slightly better per dollar spent (they cost less to build); decks list better in markets where elevated outdoor space is the norm. The worst resale outcome is either one built badly — a heaved patio or a spongy deck subtracts value.
The hybrid worth considering
Plenty of the best backyards do both: a deck at door level stepping down to a patio at grade. Build the deck small (landing + grill zone, 100–150 sq ft) and let the cheaper patio carry the square footage — you get the elevation solution and the space, at less than a full-size deck’s price.